If, within a period of two years following notification of the authorisations provided for in articles R. 5142-8 to R. 5142-10, the establishment is not operating, these authorisations lapse. However, if justification is provided before the expiry of this period, it may be extended by the Director General of the Agence nationale de sécurité sanitaire de l’alimentation, de l’environnement et du travail.